You can do a google search to find your state’s guidelines on their government website. In Missouri, it’s state tax free, but not city tax free in store or online, for certain school supplies & clothes as long as you pay for it that weekend. If we order online, then pay when we pick it up after that Sunday, we’ll be charged regular tax.

Kim is correct. You need to check your State’s website to determine whether on-line, telephone, etc. sales will be tax-exempt. In Texas, on-line and telephone sales will be exempt during the tax-exempt weekend—but that may not be true in every State.